Personally, I would be interested in a builders gathering. I went to one such event a couple years ago (concerning H&K rifles) and picked up a couple very useful points and skills.

Now, the downside is that while I certainly have some experience building my own custom guns, I have zero experience building doubles. Hopefully that will have changed by the time such an event could be organized.

But with enough notice I would definitely be down with buying a ticket to Colorado. It would be well worth it . . .